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Comment by typesanitizer | Hacker News Reader

> [..] so isolation isn't a WHERE clause somebody has to remember, [..] Two things the post doesn't cover and I'm happy to get into. What closing the cross-region lost update actually took: [..]

Set of my Claude alarm bell, and lo-and-behold, Pangram judges this comment to be 100% AI-generated, albeit with limited confidence.

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There's even a load-bearing in there as well

And the read amplification, which we have a plan for but waiting on a clear signal for when it’s needed.

This is Claude between the lines admitting none of it was needed. Postgres on a VM would be doing just fine right now.

real people don't write "compare-and-swap" ... or "lo-and-behold" for that matter.

edit. Clearly the joke about "lo-and-behold" didn't land well with the bots...

People who grew up with assembly language or locking primitives are fairly likely to use compare-and-swap because it's literally the commonly understood term for it.

https://en.wikipedia.org/wiki/Compare-and-swap

TIL, thanks for the context. What I was getting at still stands, LLM's seem to love a lot of words-with-hyphens which might be grammatically correct, but I've never seen a human actually type.

Compare-and-swap is a hardware instruction, and beyond that a desirable pattern for dealing with concurrent writes.

CMPXCHG

https://www.felixcloutier.com/x86/cmpxchg

https://lwn.net/Articles/847973/

I do.

For compare-and-swap I have even got a lock less queue that I implemented with it.

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